Polaronic dressing from a Bose-Einstein condensate destroys a loosely bound dimer of two impurity atoms while a tightly bound dimer survives, with the crossover set by the ratio of dimer binding energy to polaron energy.
Non-equilibrium dynamics of dipolar polarons
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We study the out-of-equilibrium quantum dynamics of dipolar polarons, i.e., impurities immersed in a dipolar Bose-Einstein condensate, after a quench of the impurity-boson interaction. We show that the dipolar nature of the condensate and of the impurity results in anisotropic relaxation dynamics, in particular, anisotropic dressing of the polaron. More relevantly for cold-atom setups, quench dynamics is strongly affected by the interplay between dipolar anisotropy and trap geometry. Our findings pave the way for simulating impurities in anisotropic media utilizing experiments with dipolar mixtures.
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Polaronic dressing of bound states
Polaronic dressing from a Bose-Einstein condensate destroys a loosely bound dimer of two impurity atoms while a tightly bound dimer survives, with the crossover set by the ratio of dimer binding energy to polaron energy.